Malicious PDF — malware analysis report

Static analysis result for SHA-256 7be29a38504f3a6f…

MALICIOUS

PDF

34.2 KB Created: 2021-06-30 12:48:43 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 5385ee100c798e831a3a2615142d967c SHA-1: d576dcefb697a9dab5bfde4f1b53c1c6df7ebd02 SHA-256: 7be29a38504f3a6f6fda2375e1682403c49587cf27d6c7906a7d1082cd727778
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs that are designed to lure users into clicking on links related to game hacks and free currency. The primary lure URL is http://netcdn.co/app/431946152/free-bc-roblox-codes-game-hack, which is likely a redirector to malicious content or a scam page. The ML classifier also strongly indicated maliciousness, supporting the assessment of a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • External URI info PDF_URI
    PDF contains an external URL action
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://netcdn.co/app/431946152/free-bc-roblox-codes-game-hack PDF link annotation
    • http://perpustakaan.ftk.uinib.ac.id/repository/roblox-hack-top-no-verification_GM431946152.pdfIn PDF document text
    • http://perpustakaan.ftk.uinib.ac.id/repository/170-robux-free_GM431946152.pdfIn PDF document text
    • http://perpustakaan.ftk.uinib.ac.id/repository/free-robux-codes-no-builders-club_GM431946152.pdfIn PDF document text
    • http://perpustakaan.ftk.uinib.ac.id/repository/hack-para-roblox-murder-mystery-2_GM431946152.pdfIn PDF document text
    • http://perpustakaan.ftk.uinib.ac.id/repository/wahoo-roblox-free-robux_GM431946152.pdfIn PDF document text
    • http://perpustakaan.ftk.uinib.ac.id//repository/minecraft-free-minecraft_GM479516143.pdfIn PDF document text
    • http://perpustakaan.ftk.uinib.ac.id//repository/coin-master-free-spin-link-app_GM406889139.pdfIn PDF document text
    • http://perpustakaan.ftk.uinib.ac.id/repository/roblox-hack-deutsch-auf-pc-robux_GM431946152.pdfIn PDF document text
    • http://perpustakaan.ftk.uinib.ac.id//repository/coin-master-mod_GM406889139.pdfIn PDF document text
    • http://perpustakaan.ftk.uinib.ac.id/repository/boku-no-roblox-legendary-hack_GM431946152.pdfIn PDF document text
    • http://perpustakaan.ftk.uinib.ac.id//repository/master-free-spin-and-coin-link_GM406889139.pdfIn PDF document text
    • http://perpustakaan.ftk.uinib.ac.id/repository/free-promo-codes-roblox_GM431946152.pdfIn PDF document text
    • http://perpustakaan.ftk.uinib.ac.id/repository/totally-free-coin-master-spins-2021_GM406889139.pdfIn PDF document text
    • http://perpustakaan.ftk.uinib.ac.id/repository/free-roblox-templates_GM431946152.pdfIn PDF document text
    • http://perpustakaan.ftk.uinib.ac.id/repository/vpn-for-tiktok-free_GM835599320.pdfIn PDF document text
    • http://perpustakaan.ftk.uinib.ac.id/repository/can-you-give-me-robux_GM431946152.pdfIn PDF document text
    • http://perpustakaan.ftk.uinib.ac.id//repository/pokemon-go-for-free_GM1094591345.pdfIn PDF document text
    • http://perpustakaan.ftk.uinib.ac.id//repository/free-spins-coin-master-apple_GM406889139.pdfIn PDF document text
    • http://perpustakaan.ftk.uinib.ac.id/repository/roblox-hack-no-human_GM431946152.pdfIn PDF document text
    • http://perpustakaan.ftk.uinib.ac.id/repository/free-robux-codes-that-work-2021_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002f5e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F5E 22516 bytes
SHA-256: 164a6dbd81e3ec9b67c347b9ea73e5cfcf6a97712750ff9d444c08968473867a
font_01_sfnt_off0000613e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x613E 18824 bytes
SHA-256: f239842202ed2546f92102b91513636bf83ba8f2c4ae42b381baa4ac21b44f20

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